16972863 has 8 divisors (see below), whose sum is σ = 22674048. Its totient is φ = 11293464.

The previous prime is 16972861. The next prime is 16972867. The reversal of 16972863 is 36827961.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16972863 - 2¹ = 16972861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16972861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3531 + ... + 6812.

It is an arithmetic number, because the mean of its divisors is an integer number (2834256).

Almost surely, 2^16972863 is an apocalyptic number.

16972863 is a deficient number, since it is larger than the sum of its proper divisors (5701185).

16972863 is a wasteful number, since it uses less digits than its factorization.

16972863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10893.

The product of its digits is 108864, while the sum is 42.

The square root of 16972863 is about 4119.8134666511. The cubic root of 16972863 is about 256.9912688117.

It can be divided in two parts, 1697 and 2863, that added together give a triangular number (4560 = T₉₅).

The spelling of 16972863 in words is "sixteen million, nine hundred seventy-two thousand, eight hundred sixty-three".